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Error in Intro_to_Cloud_ML_with_Flask_and_CNTK.ipynb TypeError: Use async with instead #80

Closed shirishr closed 6 years ago

shirishr commented 6 years ago

current version of aiohttp is 3.3.0 I suspect that because of this, the notebook encounters errors. The moment with aiohttp.ClientSession() as session: is executed, it results in error TypeError: Use async with instead

miguelgfierro commented 6 years ago

The version I used for this notebook was aiohttp==2.0.3, could you try with that?

shirishr commented 6 years ago

@miguelgfierro,

I know I am being greedy :o) The code so far has certainly shown how to build a production-worthy setup. However persisting with this for the sake of completeness

Uninstalled aiohttp and reinstalled aiohttp==2.0.3

but got a new error

RuntimeError: This event loop is already running

Full trace:

RuntimeError Traceback (most recent call last)

in () ~/anaconda3/envs/mxnet/lib/python3.6/asyncio/base_events.py in run_until_complete(self, future) 453 future.add_done_callback(_run_until_complete_cb) 454 try: --> 455 self.run_forever() 456 except: 457 if new_task and future.done() and not future.cancelled(): ~/anaconda3/envs/mxnet/lib/python3.6/asyncio/base_events.py in run_forever(self) 407 self._check_closed() 408 if self.is_running(): --> 409 raise RuntimeError('This event loop is already running') 410 if events._get_running_loop() is not None: 411 raise RuntimeError( RuntimeError: This event loop is already running **Update** There are some other messages but not in trace as: ERROR:asyncio:Task exception was never retrieved future: :21> exception=RuntimeError('Session is closed',)> Traceback (most recent call last): File "", line 30, in run_experiment data = yield from future File "/home/sam/anaconda3/envs/mxnet/lib/python3.6/asyncio/tasks.py", line 458, in _wait_for_one return f.result() # May raise f.exception(). File "", line 14, in http_get response = yield from s.request('post', url, data=img) File "/home/sam/anaconda3/envs/mxnet/lib/python3.6/site-packages/aiohttp/client.py", line 616, in __iter__ resp = yield from self._coro File "/home/sam/anaconda3/envs/mxnet/lib/python3.6/site-packages/aiohttp/client.py", line 164, in _request raise RuntimeError('Session is closed') RuntimeError: Session is closed
miguelgfierro commented 6 years ago

hey @shirishr I added a conda file with the library version that I used one year ago when I did this example. I hope that fixes your error and unblocks you.

I tried to run the notebook again but I found some breaking changes from CNTK and others, that unfortunatelly, I don't have time to fix now.

I would recommend to use this tutorial as a base point for what you want to build, and not take the code as it is, since it is breaking right now.

Good luck!